Tie-plate.



A MORHISON.

TIE PLATE.

N man MAR\5.1915

. APPLICA ,1,143,301'. I Patented June 15, 1915 fm WQMQ a www Mcanrson, orrirrssunen, printer-immnrag,sesionar; To lninwcarn," roeren & c.ourenlangv LIMITED, or rrr'rsnunen.-lrnunsrriyanra.

Y ernten TIE-PLATE.

.ernennen A* Specification of Letters Patent. i

Patented AJun e l5, i915,

application met. Marci; 5,51915. serial no'. 12,2558.

'known hSt-LANnnnw-Monnrson,

,'injthe 4county of Allegheny and e 'State of ennsylyania, have `invented a new' Improvement A'lliellates7 cfg-which the lateral' resistance to outward creep-4 anti-cutting. A I l The nature of my invention will be best 2t@ 'ingLa-nd' which will at the same tirnebe' understood by. reference to theuaccompanyf drawing, in whichl hafve shown 'the 25 preferred form thereofjand which will-now -be described, it beingfpremised however'v that changes can' be made in the `precise ormvvand shape, of the parts of the plateV without departing fromthe spirit and scope voflrny invention claims.

The 'upper surface of the tieplafte is ormedlwith vthe intermediate railseating as dened in the appended ject-ions 6 which extend from side to side of the plate and substantially parallel with the rail. rl`he initial bearing surface of the projection 6 is preferably somewhat rounded or convex so as to be non-cutting in its action on a tie 7, andthe outer side 8 of each projection is somewhat abrupt, while the inner side is formed by a sloping surface 9 which extends upwardly and inwardly, where it merges with the abrupt outer side of the adjacent projection; or

plates applied is -a bottom The object ot"v my inyention .isl to provide surface at terminating atene side at the base of' the Aupwardly projecting' long1tud1-.- nal rib 3 against. which the outer edge of provided with a plurality of bearing pro-- the bottom surface: ofthe tie between -adjaeent'fprojections. 6 may. be considered as composed of a-series of plane surfaces" which are at an angle to the rail bearing topsurtace of theplate'and which-slope upwardly and inwardly.'V

l() designates thev usual holesorspikes 1l.- l

These `Aholesniay -be arranged in any usual or suitable manner, and any desired nun-1 bert-hereof may lue-provided in one or both edge portions of thegplate., ln genera-l, the

plate may ladapted for-the use ofany suitable fastening device.

. The adyantages o' myinyenti'on arise.

from the peculiar 'construction of thennder surface 'of the plate haring the non-cutting projections extending from 'side to side .with the intermediate' upwardly and inwardly? sloping plane surfaces.' When' the plate is imtially seated upon the top of 'a tie it takes itsbearing" only-on thefprojections 6.

Under service, these projections gradually embed themselves in fthe'tie, without, however, positively cutting the' fiber of lthe, tie.

The abrupt outer sides 4,8' ofthe projections aorda maximum lateral resistance against spreading of the platev in the direction of' the outside of the track;

.wie I have shown the preferred form of tie plate as having -thr'ee of thesetransverse projections 6, I' do not limit myself to this number, as a greater or less number may be employed. l do, however,` consider it essential thatthere shall be at least one ofthese projections underneath the base of the rail. -Where a plurality of the projections are employed, Iz prefer to place one of them directly below the rib or projection 3.

The vconstruction of the tie plate is such as to enable it to be readily yrolled in commercial mills, as will be apparent.

I claim:

l. A railway tie plate of generally rec; tangular forni and having its greatest diinensionin a direction at substantially right angles to the length of the rail which it supports, said plate being adapted to be seated onand secured to a single tie and haring its under or tie-engaging surface formed with a transverse projection extendingr substantially parallel-to the length of the rail, said projection extending from edge to edge of the plate and having a plane bearing,` surface which is inclined upwardly and inwardly toward the inner end of the plate atanloblique-'angle te the upper mil bearing surface of the plate," substantially as described. 2.' A. milway-tielplate' of generally rectanglar forni and'having its greatest dmen sioinin :i directional; substantially right anglestothelengfth of the Tail which it supports, said plafte being .adapted t be seated on and, secred to a -single tie and lhaving its under or tie-engaging surface formed with a transverse projection extending' substantially parallel to the length of the rail, said projection extending from edge to edge of the plate. and having a plane bearing surface which is inclined upwardly and inwardly toward the inner e'ncl of the plate at en oblique angle to the upper rail `bearing surface of the plate, said projec Ation being of rounded o1' convex form at its 20 highest point, substantially' :is descibefl.,

3. A railway tie plate of generally ree-l nndei surface nf seilplate beting the? tengnlei ferm adapted, be cured upon single tie and lievi est dimension et= Substantiallye to tfie length eftlie Peil which, 'Seite lin testimony 'Wlneieoij l lieve nements ll-i'tnerss-ee l H. CQRWIN? Gee. ll. Flammen. 

